Note: Product visuals are presented for illustrative purposes only and may vary slightly in colour, finish, proportions, and final installed appearance. For the most realistic representation, please refer to our Customer Gallery featuring actual installation photos.
Why it matters
Built for how you actually get home.
A Simple, Offline Digital Lock
The Interlock Mercury X2 is built for households that want a genuinely offline digital lock — no app, no Wi-Fi, no cloud account, and no exposure to remote hacking, since everything is stored locally on the lock itself rather than passing through a server anywhere. For anyone who's simply not interested in managing another connected device, that's the entire point.
Ways to Unlock
Fingerprint, a numeric PIN, an RFID card, and a mechanical key cover four access methods, all registered and managed directly on the lock without any app-based setup — enrol a new fingerprint or card standing right at the door, no phone required, with plenty of room to register the whole household.
Built for Everyone in the Household
A simple, intuitive interface is designed for users of all ages, including elderly or non-tech-savvy family members who'd rather not deal with an app at all. Visual and audio low-battery indicators give plenty of warning before the AA batteries need replacing, so there's no surprise dead-battery moment at the door.
Security & Build
Auto-locking and double-lock modes secure the door automatically, and the solid aluminium construction gives it a sturdy, dependable feel for daily use rather than a light, plasticky one. An emergency USB-C power input and mechanical key backup mean you're never locked out, even with a fully depleted battery.
Please check the following requirements before purchase. If unsure, send us your door and gate photos on WhatsApp and our team will confirm compatibility before installation.
Door Gap
Gap Requirement: 3-8mm
Distance Between Door & Gate
Minimum Distance Requirement: >80mm
Door Thickness
Recommended door thickness: 35-55mm
Distance between Door Edge to Internal Handlebar (if there is a handlebar)
If there is a internal handlebar, this lock is not compatible
Real installation photos from our customers.
| Model | Interlock Mercury X2 |
|---|---|
| Lock Type | Mortise |
| Unlocking Methods | Fingerprint, PIN Code, RFID Card (M1/MiFare), Manual Key |
| Connectivity | None - fully offline, no app/Wi-Fi/cloud account required; all access data stored locally on the lock |
| Power Source | 4x AA/AAA dry batteries, DC 4.8V-6.5V rated; 5V/2A USB Type-C emergency power |
| Warranty | 1 year (onsite & parts warranty) |
| Material | Aluminum |
| Total Credential Capacity | Up to 200 total credentials (fingerprints + passwords + NFC/M1 cards combined) |
| Fingerprint Capacity | Up to 50 IDs (10 admin users + 40 ordinary users), 508 DPI sensor resolution |
| Card Capacity | Up to 200 IDs, compatible with MiFare/M1 cards at 13.56MHz, encrypted card input |
| Password Capacity | Up to 200 passwords, 6-12 digit length supported |
| Recognition Accuracy | False Rejection Rate < 1%, False Acceptance Rate < 0.001% |
| Working Current | Average <= 200mA, peak approx. 300mA |
| Quiescent Current | <= 50uA |
| Electrostatic Protection | Contact discharge +/-8kV, Air discharge +/-15kV |
| Operating Temperature | -25C to 60C |
| Features | Auto-lock, double-lock function, mechanical key override |
Frequently Asked Questions
Have questions? We're here to help you.
The Interlock Mercury X2 is best suited for homeowners who want a simple, reliable digital door lock without apps, WiFi, Bluetooth, or cloud accounts. It is a good fit for families, elderly users, rental units, and anyone who prefers an easy-to-use offline lock.
The Mercury X2 is designed to work fully offline. It does not require an app, WiFi, Bluetooth, or a cloud account, making it suitable for users who want a straightforward lock with fewer digital complications.
The Mercury X2 supports four access methods: fingerprint, PIN code, RFID tag, and mechanical key. This allows each household member to use the method that is most convenient for them.
No. The Mercury X2 operates fully offline and does not rely on mobile apps, WiFi, or Bluetooth. Fingerprints, PIN codes, and RFID tags are registered directly on the lock.
No. Fingerprint and PIN data are stored locally inside the lock’s internal memory. This reduces exposure to online risks and is useful for privacy-conscious users who do not want cloud-connected access control.
Yes. The Mercury X2 can be suitable for elderly users because it is simple, offline, and does not require an app. Users can unlock by fingerprint, PIN code, RFID tag, or mechanical key depending on what is easiest for them.
Yes. Children can use suitable access methods such as RFID tag, PIN code, fingerprint, or mechanical key depending on their age and family preference. For younger children, parents may prefer RFID tags or PIN codes.
Yes. The Mercury X2 can be suitable for rental units because it offers simple access management without requiring tenants to install apps or connect to WiFi. PIN codes, fingerprints, and RFID tags can be managed directly on the lock.
No. The Mercury X2 does not support remote unlocking because it is not connected to WiFi, Bluetooth, or an app. It is designed for users who prefer a simple offline digital lock.
No. The Mercury X2 does not provide app-based activity logs because it operates offline. If you need remote logs, app control, or smart-home functions, a WiFi-enabled lock would be more suitable.
No. The Mercury X2 focuses on essential access methods only: fingerprint, PIN code, RFID tag, and mechanical key. This helps keep the lock simple, practical, and easy to use.
The Mercury X2 uses four standard alkaline AA batteries. This makes battery replacement simple, as AA batteries are easy to buy and replace without needing to recharge a lithium battery pack.
Under normal household usage, the four AA batteries are expected to last several months. Actual battery life depends on usage frequency, battery quality, temperature, and door condition.
Yes. The Mercury X2 provides low-battery indicators to remind you when it is time to replace the AA batteries.
If the batteries are completely flat, you can temporarily power the Mercury X2 using a USB-C power bank through the emergency power port. You can also use the mechanical key as a backup access method.
Yes. The Mercury X2 has an emergency USB-C power input. If the batteries are depleted, you can connect a portable power bank temporarily to power the lock and unlock the door.
Yes. The Mercury X2 includes 2 mechanical keys for emergency or backup access.
Yes. The Mercury X2 includes 2 RFID tags, which can be used as a convenient access method for household members.
Yes. The Mercury X2 includes an auto-lock feature that secures the door automatically after closing. This is useful for busy households that want the door to lock without needing to remember each time.
Double-lock mode adds extra security by blocking external digital access until the mode is turned off from inside. It is useful at night or whenever you want additional privacy and security.
Yes. The Mercury X2 features an aluminium construction that provides a sturdy lock body, corrosion resistance, and a clean modern look for daily use in Singapore homes.
Yes. The Mercury X2 can be suitable for HDB doors when the door meets the required thickness, door gap, clearance, and installation conditions. A compatibility check is recommended before purchase.
Yes. The Mercury X2 can be suitable for condominium and landed property doors, depending on the door thickness, frame alignment, door gap, and installation clearance.
The recommended door thickness for the Mercury X2 is 35mm to 55mm. Final compatibility still depends on the actual door condition and installation area.
The recommended door gap for the Mercury X2 is 3mm to 8mm. If the gap is too narrow or too wide, installation suitability may be affected.
The Mercury X2 requires more than 80mm distance between the door and gate. This is important to ensure the lock has enough clearance and does not clash with the gate when the door is closed.
No. If your door has an internal handlebar that interferes with the lock area, the Mercury X2 may not be compatible. A photo-based compatibility check is recommended before purchase.
Not every wooden door is suitable. Compatibility depends on door thickness, door gap, lock area, frame alignment, existing lock position, and door-to-gate clearance. Our team will check your photos before confirming suitability.
You should send clear photos of the front and back of your door, the side of the door, the current lock area, the door frame, and a photo showing the door and gate closed together if you have a gate. If possible, also provide the door-to-gate distance.
Yes. Complimentary installation is included for the Mercury X2. Before installation is confirmed, our team will still need to check your door photos to make sure your door thickness, door gap, frame alignment, and door-to-gate clearance are suitable.
The Mercury X2 comes with 1 year warranty. Warranty coverage may depend on usage conditions, installation conditions, and whether the lock is used within the recommended environment.
The Mercury X2 is suitable for homeowners who want a simple, offline digital lock with fingerprint, PIN code, RFID tag, mechanical key access, AA battery convenience, auto-locking, and local data storage. It is ideal for users who want digital lock convenience without app, WiFi, Bluetooth, or cloud features.